Avant company was found in 2008. The company has brought together engineers from various fields, providing services for oil&gas, offshore, marine and green energy sectors (oil platform equipment, lifting construction, wind farm, hydro electrical power). It’s main role was to offer engineering services and project assistance as aid with concept, development, design and calculation.
I started my work in Avant as a trainee and very quick I was involved to work with real projects.

My tasks included design, calculation, technical documentation, customer contact and presentation of results. I also checked the work of others, pointing out errors and proposing new solutions. During my work, I based on many offshore and technical standards like:





I worked also with internal company standards (BP, Shell, Semco).

In Avant I was working mainly with technical software. I used it to create parts and assemblies, made calculations, technical drawings and also presentation and animation. These software are:





In Avant I worked mainly for petroleum companies like:

Skid system

The first project I was involved in was the design of the skidding system for a coil tubing jacking frames. This construction is a modular tower which is use for search an oil. The customer who commissioned the job was a company working for BP. The tower itself was created before, however, it was required a large amount of repairs and modifications. This together with the creation of a skid system over the capabilities of the company KCC, so Avant was asked for help with this project.

My first task was designing clamps enable to skid the construction of weigh approx. 100 tons. There was some models of the market, but none of them fill the client’s requirements. The customer wants some clever solution, strong, as small as possible and easy for installation (because work directly on oil platform are much more expensive, than in onshore workshop).

I started my work from a simple calculation of hydraulic cylinder strength,

then I choose one of the model, with was strong enough and design a se

veral solution. The construction had a few connections, like bolds and pins, with must be calculated and checked. During the work there was a

lso a problem with skid beam, because the gripping force was huge, that can bend beam flange.
From the solutions I have proposed, one was chosen, and after a slight refinement, was fully accepted by the customer. As work on the project continued, there were still many problems to be solved.


My next task was to find the best way to access to the interior of the supporting structure.

In this case, the task was a little difficult because this was the area of manual workers. For that reason standards was more demanding. However, I found a way to meet the standard and customer’s requirements, by design a foldable ladder.

Since I completed my work quite quickly, I was asked to help the other people, whose designed the another parts of construction. Then my new role was design railings, walkways, stairs tower and lifting equipment. I also checked the work of others, and made a few calculation of lifting padeyes, slings, and welding connection.

After finishing the design part, I was involved in creating production drawings and making graphics for technical documentation and usage instructions.

The tower height is about 20  m, weight about 80 tons, and it can hold 30 tons of load.

Modular Rig Tower

The KCC company, for which I’ve made the Skid System, appreciated my skills by commissioning another task, this time more conceptual. The project included an initial settlement of the offshore market issues, which included a modular drilling rig – platform, assembly and disassembly, platform-to-site and fully functional, using today's platforms and technologies.

The project included the construction of modules, connection between them, and presentation, how to assembling and disassembling them. Last thing was to present how the tower works and cooperate with the existing oil rig infrastructure.

This project required considerable skills, not only from design field. There were some electrical and hydraulic issues, many parts required calculation, and, to make final presentation I had to improve my animation skills.

A lot of work had been done to finish this task. I designed the 3d parts and assemblies, and also require strength and buckling calculation, but for them I had some helps from the calculation department (there were to many of them to finish all on time).

The project had a really short dead line, so I worked many overtimes to finish it. Very useful was the knowledge from my previous work, and I was managed finish everything on time.

The tower height is about 50 m, weight about 200 tons, and it can hold 400 tons of load.

My work was appreciated by the customer, and the project was put forwarded to further work.

Crane Skid System

That was another project of design the moving system, this time for the crane. The project has been commissioned by BP, who was glad with the results of skid system on with Avant and KCC worked before. That’s why BP gave this job for us.

Similarly to the skid system project, main unit (the crane with 20 tons capacity) was already created, but required a lot of serviced and modernization works – KCC takes this part. But the moving system should be created as new, and the experience of the previous project proved was useful here. There were also some unit from previous project, which were used directly (skid clamp) or some, which was used after small modification (access ladder).

The main client make also made some split of job, and we (Avant) was responsible only for design and drawings, but there was another company for calculations and reports, so, during this project we needed to cooperate with them a lot. Unfortunately, they wasn’t as skilled as we excepted, and in final results some misunderstanding between our companies creates some delays.

There were also others challenges, as crane standards, and internal BP rules, but we can manage it.

According the plan the crane was prepared for usage only by 6 weeks, however the construction was so good, that it was leave on oil rig for much longer.

Pump Container

This project I’ve done myself for the KCC company. My task was to modify the container and adapt it to the new equipment for one of the BP's platform. I’ve made 3D parts and assemblies, technical documentation and some presentation images.

During that work, I spent a lot of time in the production hall, looking after the work carried out by the welders and fitters goes according the plans. It was a project in which I could see how 3D elements are transferred to the real world, and what challenges it involves.

I cooperated with a company supplying equipment to work inside a container - my task was to test the structure for strength, and working space.

In that project I also made a lifting calculation for the container, and chosen lifting equipment (shackles, slings, padeyes).

Modification of Offshore Riser Skid System

The Riser Skid System filled its work on the platform and BP wanted to use it on another oil rig. So my work was to made a necessary modification for the new place of work. The most challenging was the fact, that the area of manual workers was changed, so more stringent standards had to be met. I designed new walkways, handrails and casings for safety work. There were also some modifications with the main construction, cos skidding beam and operation space had changed.

It was interesting to make changes in my own project. This allowed me to look differently at the original design and see the possibilities to better solve some problems in case of designing similar structures in the future.

Dummy Drill

Shell project executed by Semco. For this project, my role was to consult and propose solutions, as a guide for other people involved in that project. My task was to control the work of the other engineers and to prepare the final animation and present the final solutions.

Shaker Deck Platform

Next project for KCC was a part of an order from BP. The BP wanted to replace some equipment on the drilling platform. Due to the installation of new equipment, there was a need of an additional carrier platform, strong enough to hold new units.

Although the project had to be simple, it quickly became clear that the pre-delivered dimensions of the area and surrounding environment were made inaccurately, so all modifications should have been designed with great tolerance, that the construction can fit to real conditions of the oil rig.
In that project I’ve made part, assemblies, lifting calculation and the technical documentation. I cooperated with the other engineers whose worked with different 3D software – that caused some problems, but didn’t have big influence to the work.

Modular Drill Tower

The next phase of the project was carried out by an external company, but as a result of many problems encountered, I was also included in the project to solve them. That was really nice to see, how my pre-design was interpreted and improved by others.

This time the work required very good cooperation with the calculation department and the engineers from this other company. Ultimately, my job was to design a hydraulic unit to assemble and disassemble the entire structure, as well as to present the various stages of the assembling and disassembling. At the end I’ve created some animation and drawings.


Working at Avant Offshore allowed me to get to know the needs of the Oil & Gas market and taught me many new things. I have met the DNV, Norsok, Eurocode, API standards and internal BP and Shell standards. I also learned methods of performing strength analyzes, including lift analysis and combined analysis (temperature + load). I also improved my skill of create animations and presentations. That was great opportunity to be familiar with the Norwegian offshore market.